公开(公告)号：US20240201429A1

公开(公告)日：2024-06-20

申请号：US18455257

申请日：2023-08-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Gavril Nikolaevich VOSTRIKOV ,  Nikolay Viktorovich MURAVYEV ,  Aleksandr Evgenyevich ANGERVAKS ,  Roman Aleksandrovich OKUN ,  Anastasia Sergeevna PEREVOZNIKOVA

IPC: F21V8/00 ,  G02B27/01 ,  G02B27/42

CPC classification number: G02B6/0016 ,  G02B6/0036 ,  G02B6/0076 ,  G02B27/0172 ,  G02B27/4216 ,  G02B2027/013 ,  G02B2027/0178

Abstract: A curved waveguide-based augmented reality device is provided. The device includes a projector, and a curved waveguide. The waveguide has a shape of a concentric cylindrical meniscus and includes an in-coupling diffractive optical element and an out-coupling diffractive optical element, a grating period of a diffraction grating of the in-coupling diffractive optical element at each point of the in-coupling diffractive optical element is such that rays from one point of an initial image are input into the curved waveguide in each point of the in-coupling diffractive optical element at the same angle relative to a normal to a surface of the curved waveguide at a point of ray incidence, and at least at one point on each of the diffractive optical elements a diffraction grating period of the in-coupling diffractive optical element is equal to a diffraction grating period of the out-coupling diffractive optical element.

公开(公告)号：US20230090308A1

公开(公告)日：2023-03-23

申请号：US17940556

申请日：2022-09-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Vladimir Nikolaevich BORISOV ,  Aleksandr Evgenyevich ANGERVAKS ,  Nikolay Viktorovich MURAVEV ,  Roman Aleksandrovich OKUN ,  Gavril Nikolaevich VOSTRIKOV ,  Mikhail Vyacheslavovich POPOV ,  Jaeyeol RYU ,  Kyusub KWAK ,  Jeonggeun YUN ,  Jongchul CHOI ,  Myongjo CHOI

IPC: G02B27/01 ,  F21V8/00

Abstract: The disclosure relates to augmented reality devices, and more particularly, to augmented reality glasses and methods for operating the same. An augmented reality display device is provided. The augmented reality display device includes a projection system, an optical compensator positioned after the projection system, and a flexible waveguide. The flexible waveguide can change its curvature and comprises an input diffraction grating and an output diffraction grating. The optical compensator is configured to introduce pre-distortion to the image and optically zoom the image received from the projection system, the pre-distortion in the image and optical zoom of the image being opposite to those introduced by the flexible waveguide to the undistorted image in accordance with chosen radius of the flexible waveguide. Flexible diffraction grating distorts the pre-distorted image. The output diffraction grating outputs undistorted image to a user's eyes.

公开(公告)号：US20220107501A1

公开(公告)日：2022-04-07

申请号：US17551778

申请日：2021-12-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Nikolay Victorovich MURAVEV ,  Dmitriy Evgenyevich PISKUNOV ,  Gavril Nikolaevich VOSTRIKOV ,  Andrey Nikolaevich PUTILIN

IPC: G02B27/01 ,  F21V8/00

Abstract: A near-eye display device, an augmented reality device including the near-eye display device, and an operation method of the near-eye display device are provided. The near-eye display device includes a first expanding waveguide including a first expanding diffractive grating and a second waveguide including a second diffractive grating. The first expanding diffractive grating and the second diffractive grating are located on different planes.